2777888920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{751}}^1$

素因数の和:969

約数の個数: 128

約数和(自身を含む): 6843801600

約数和(自身を除く): 4065912680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 76, 95, 124, 152, 155, 157, 190, 248, 310, 314, 380, 589, 620, 628, 751, 760, 785, 1178, 1240, 1256, 1502, 1570, 2356, 2945, 2983, 3004, 3140, 3755, 4712, 4867, 5890, 5966, 6008, 6280, 7510, 9734, 11780, 11932, 14269, 14915, 15020, 19468, 23281, 23560, 23864, 24335, 28538, 29830, 30040, 38936, 46562, 48670, 57076, 59660, 71345, 92473, 93124, 97340, 114152, 116405, 117907, 119320, 142690, 184946, 186248, 194680, 232810, 235814, 285380, 369892, 442339, 462365, 465620, 471628, 570760, 589535, 739784, 884678, 924730, 931240, 943256, 1179070, 1769356, 1849460, 2211695, 2240233, 2358140, 3538712, 3655117, 3698920, 4423390, 4480466, 4716280, 7310234, 8846780, 8960932, 11201165, 14620468, 17693560, 17921864, 18275585, 22402330, 29240936, 36551170, 44804660, 69447223, 73102340, 89609320, 138894446, 146204680, 277788892, 347236115, 555577784, 694472230, 1388944460, 2777888920]

約数ペア:

[(1, 2777888920), (2, 1388944460), (4, 694472230), (5, 555577784), (8, 347236115), (10, 277788892), (19, 146204680), (20, 138894446), (31, 89609320), (38, 73102340), (40, 69447223), (62, 44804660), (76, 36551170), (95, 29240936), (124, 22402330), (152, 18275585), (155, 17921864), (157, 17693560), (190, 14620468), (248, 11201165), (310, 8960932), (314, 8846780), (380, 7310234), (589, 4716280), (620, 4480466), (628, 4423390), (751, 3698920), (760, 3655117), (785, 3538712), (1178, 2358140), (1240, 2240233), (1256, 2211695), (1502, 1849460), (1570, 1769356), (2356, 1179070), (2945, 943256), (2983, 931240), (3004, 924730), (3140, 884678), (3755, 739784), (4712, 589535), (4867, 570760), (5890, 471628), (5966, 465620), (6008, 462365), (6280, 442339), (7510, 369892), (9734, 285380), (11780, 235814), (11932, 232810), (14269, 194680), (14915, 186248), (15020, 184946), (19468, 142690), (23281, 119320), (23560, 117907), (23864, 116405), (24335, 114152), (28538, 97340), (29830, 93124), (30040, 92473), (38936, 71345), (46562, 59660), (48670, 57076)]